BIO 182 LATEST MODULE 2 LECTURE
QUIZ 2026 FULLY SOLVED ASU
If two rattlesnakes are of normal coloration but heterozygous for the albino trait, what
percentage of their offspring would you expect to be albinos?
25%
What features tend to distinguish autosomal recessive traits in a pedigree? (choose all that
apply)
-Rare recessive traits tend to be distributed sparsely in pedigrees.
-Consanguineous marriages (inbreeding) increase the incidence of such affected individuals in a
family tree.
What outcome would you expect from a cross of red-eyed female fruit flies, Xw+Xw+ with
white-eyed male fruit flies XwY? This is an example of a sex-linked trait.
100% red-eyed offspring of both sexes
In a pedigree, what is one clue that the disorder you see in the family tree is a mitochondrial
disorder?
The disorder is passed only from affected females - and then to all of that female's offspring
What features define complex traits? (choose all that apply)
-Not characterized by simply observable Mendelian ratios in offspring.
-Trait value is determined by multiple genes
-Environmental effects can be significant
Most instances of human phenotype - including many health disorders (such as our chances
of having a heart attack or developing cancer) are usually cases of which of the following
(choose all that apply)
-Complex traits
-Influenced by environmental factors
-Influenced by multiple genes
, If the twins, Thomas and Vincent Seris, (featured in the short documentary shown prior to
this lecture) were to choose to have children someday, what is the likelihood that their
children would also have XP (Xeroderma pigmentosum)?
0%
If you were to cross a black and a white guinea pig, what would you expect in the F1
generation? (keeping in mind that black is the dominant trait)
1- All black offspring
2-mAll white offspring
3- 3:1 black to white offspring
4- 3:1 white to black offspring
All black offspring
If you were to cross those F1 guinea pigs, what outcome would you expect in the F2
generation?
Parental generation: White x black
F1 generation: ??
F2 generation: ??
3:1 black to white offspring
Which cellular process explains Gregor Mendel's principle of equal segregation?
The process of meiosis
Mendel's principle of independent assortment is only true if the traits are coded for by
genes....
that are located on different chromosomes or very far apart on the same chromosome.
If you performed a cross of this sort with pea plants: GgWw x ggWw -
What proportion would you expect to be yellow (G) and smooth (W)?
3/8
A purple-flowered (P allele) pea plant of unknown genotype is crossed with a white-flowered
pea plant (little p allele). None of the offspring have white flowers. What is the genotype of
the purple-flowered parent? *Note: this is what is called a 'test cross'.
PP
QUIZ 2026 FULLY SOLVED ASU
If two rattlesnakes are of normal coloration but heterozygous for the albino trait, what
percentage of their offspring would you expect to be albinos?
25%
What features tend to distinguish autosomal recessive traits in a pedigree? (choose all that
apply)
-Rare recessive traits tend to be distributed sparsely in pedigrees.
-Consanguineous marriages (inbreeding) increase the incidence of such affected individuals in a
family tree.
What outcome would you expect from a cross of red-eyed female fruit flies, Xw+Xw+ with
white-eyed male fruit flies XwY? This is an example of a sex-linked trait.
100% red-eyed offspring of both sexes
In a pedigree, what is one clue that the disorder you see in the family tree is a mitochondrial
disorder?
The disorder is passed only from affected females - and then to all of that female's offspring
What features define complex traits? (choose all that apply)
-Not characterized by simply observable Mendelian ratios in offspring.
-Trait value is determined by multiple genes
-Environmental effects can be significant
Most instances of human phenotype - including many health disorders (such as our chances
of having a heart attack or developing cancer) are usually cases of which of the following
(choose all that apply)
-Complex traits
-Influenced by environmental factors
-Influenced by multiple genes
, If the twins, Thomas and Vincent Seris, (featured in the short documentary shown prior to
this lecture) were to choose to have children someday, what is the likelihood that their
children would also have XP (Xeroderma pigmentosum)?
0%
If you were to cross a black and a white guinea pig, what would you expect in the F1
generation? (keeping in mind that black is the dominant trait)
1- All black offspring
2-mAll white offspring
3- 3:1 black to white offspring
4- 3:1 white to black offspring
All black offspring
If you were to cross those F1 guinea pigs, what outcome would you expect in the F2
generation?
Parental generation: White x black
F1 generation: ??
F2 generation: ??
3:1 black to white offspring
Which cellular process explains Gregor Mendel's principle of equal segregation?
The process of meiosis
Mendel's principle of independent assortment is only true if the traits are coded for by
genes....
that are located on different chromosomes or very far apart on the same chromosome.
If you performed a cross of this sort with pea plants: GgWw x ggWw -
What proportion would you expect to be yellow (G) and smooth (W)?
3/8
A purple-flowered (P allele) pea plant of unknown genotype is crossed with a white-flowered
pea plant (little p allele). None of the offspring have white flowers. What is the genotype of
the purple-flowered parent? *Note: this is what is called a 'test cross'.
PP
